At 11:59 p.m. and 60 seconds, a leap second was added to Coordinated Universal Time to synchronize clocks with Earth’s decelerating rotation. 

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<p>At 11:59 p.m. and 60 seconds, a leap second was added to Coordinated Universal Time to synchronize clocks with Earth’s decelerating rotation. </p><p> </p> Learn more about your ad-choices at <a href="https://www.iheartpodcastnetwork.com">https://www.iheartpodcastnetwork.com</a>

From the desk of “Stuff You Missed in History Class,” “This Day in History Class” quickly recounts a tidbit from today’s events in history.

This Day in History Class

At 11:59 p.m. and 60 seconds, a leap second was added to Coordinated Universal Time to synchronize clocks with Earth’s decelerating rotation.

First leap second added to UTC - June 30, 1972 

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/1b7315ad-920a-4c9b-9d29-ae3200390fa9/transcript